package day.experience.day318;
//定义一个圆形的子类
public class Circle extends Shape{
    public void Drow(){
        super.Drow();
    }
    public void Circle(double a){
        System.out.printf("圆的面积是：%.2f\n",3.14*a*a);
        System.out.printf("圆的周长是：%.2f\n",3.14*2*a);
    }
}
